Thank you Steve. I am not using an ATA. I am using opvxa1200+ e159:0001 OpenVox A800P. So, unfortunately, I do not believe the MWI stutter tone is done by the hardware (DAHDI/FreeTDM). I do not believe this card can send the MWI light signal as stated.On Fri, Mar 22, 2013 at 9:43 AM, Trever L. Adams <trever.adams@gmail.com> wrote:Can FreeSWITCH generate the waivering tone?
IIUC, FreeSWITCH does not generate the dialtone. The VoIP phone will do that itself, and an ATA will generate it for a analog (POTS) phone. Your message wasn't clear if you are using VoIP phones, or an ATA (analog telephone adapter) with analog phones. A VoIP phone will "subscribe" with FreeSWITCH to a MWI login, and FreeSWITCH will send it a message whenever the number of messages waiting changes. In response, the VoIP phone will light the MWI and will play a stuttering dialtone when the handset is picked up.
According to http://www.voip-info.org/wiki/view/MWI "...most ATA's support stutter dial-tone."
--Steve